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The additional operation of retrieval of the cover image at the decoder is necessary for lossless watermarking system. Taking into account this major issue, efficient implementation of reversible image watermarking needs to be addressed. This can be solved using hardware implementation. This paper focus on the digital design with pipelined architecture of reversible watermarking algorithm based on...
There are diverse hardware realization for digital watermarking of multimedia proposed in the literature. This paper focuses on the design and implementation of a fast FPGA(Field Programmable Gate Array) based architecture using reversible contrast mapping (RCM) based image watermarking algorithm. The specialty of this architecture attracts to the fact of clock-less encoder design and implementation...
Reversible contrast mapping (RCM) is used in reversible watermarking (RW) for images as a simple integer transform applied on pair of pixels and their least significant bits (LSB) are used for data embedding. This paper first proposes some modifications on existing RCM technique for further performance improvement in terms of embedding rate and visual distortion. This is then followed by a hardware...
In recent time protection of intellectual properties is a concern. To protect the image and video from the unauthenticated access or tampering, watermarking is adopted as a solution. Real-time implementation of various watermarking techniques has been utilized in broadcasting. In this paper we have a spatial domain Spread Spectrum (SS) watermarking scheme which effectively eliminates security problem...
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